Home / 258,220.46-356,285.86-156,243.39

Finding the Fourth Proportional to 258,220.46, 356,285.86 and 156,243.39

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Solution

The fourth proportional to 258,220.46, 356,285.86 and 156,243.39 is: 215,580.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,220.46 : 356,285.86 = 156,243.39 : x
  2. Step 2: Convert to fraction form
    258,220.46/356,285.86 = 156,243.39/x
  3. Step 3: Cross multiply
    258,220.46x = 356,285.86 × 156,243.39
  4. Step 4: Simplify right side
    258,220.46x = 55,667,308,848.79
  5. Step 5: Solve for x
    x = 55,667,308,848.79/258,220.46
  6. Step 6: Final answer
    x = 215,580.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.